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| ha12155nt/HA12157NT audio signal processor for cassette deck (dolby b/c-type nr with recording system) ade-207-115c (z) 4th edition june 1997 description ha12155nt/HA12157NT is silicon monolithic bipolar ic providing dolby noise reduction system*, electrical volume system, rec equalizer system and level meter system in one chip. functions ? rec equalizer 2 channel ? dolby b/c nr 2 channel ? electronic volume 2 channel ? level meter 2 channel features ? inductor less rec equalizer is adjustable of its characteristics by external resistor ? rec level is adjustable automatically with electrical volume which is built-in ? 3 type of input selection is available (one is by way of electrical volume) ? separate input selection sw and rec/pb sw ? dolby noise reduction with dubbing cassette decks (unprocessed signal output available from recording out terminals during pb mode) ? log-compressed level meter output is range from 0 v to 5 v (usable as music search switchable gain of 0 db and 20 db respectivily) ? normal-speed/high-speed (double), normal/metal/chrome fully electronic control switching built-in ? nr-on/off, dolby b/c, mpx on/off fully electronic control switching built-in (controllable from micro-controller directly) ? reduction of number of pin by transfered serial data to electronic volume control switching and another control switching (controllable from micro-controller directly) ? low external parts count
ha12155nt/HA12157NT rev.4, jun. 1997, page 2 of 57 * dolby is a trademark of dolby laboratories licensing corporation. a license from dolby laboratories licensing corporation is required for the use of this ic. ordering information operating voltage type package dolby level rec-out level pb-out level min max ha12155nt dp-64s 300 mvrms 300 mvrms 580 mvrms 9.5 v 16 v HA12157NT 775 mvrms 12 v 16 v ha12155nt/HA12157NT rev.4, jun. 1997, page 3 of 57 block diagram data clk stb gnd (1) vri (l) cnt (l) rpi (l) bias pbi (l) dgnd ia out (l) nrin (l) pb out (l) rec out(l) lm in(l) lm out(l) eq in(l) gnd (2) eq out(l) nn nc nm hn hc hm eq-controller fm fq f/q gh gl gp eq out(r) iref eq in(r) lm out(r) lm in(r) rec out(r) pbout (r) vref (r) nrin (r) ia out (r) inj pbi (r) ref rpi (r) cnt (r) vri (r) v cc mpx on/off c/b nr on/off bias 6bit dac sw ia ia e vol 6bit dac shift register latch decoder dolby b/c nr rect rec eq rect lma lma + ? + ? rec eq m p x 64 63 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 45 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 3 2 1 62 vref (l) m p x dolby b/c nr e vol ha12155nt/HA12157NT rev.4, jun. 1997, page 4 of 57 absolute maximum ratings item symbol ratings unit supply voltage v cc 16 v power dissipation*1 pd 770 mw operating temperature topr ?30 to +75 c storage temperature tstg ?55 to +125 c note: 1. value at ta 75c electrical characteristics (ta = 25c v cc = 14 v dolby level 300 mvrms) item symbol min typ max unit test conditions notes quiescent current i q ? 29.0 37.0 ma no signal input amp gain g via rpi 18.5 20.0 21.5 db vin = 0 db, f = 1 khz g via pbi 18.5 20.0 21.5 b-type nr encode boost b-enc-2k 2.8 4.3 5.8 db vin = ?20 db, f = 2 khz b-enc-5k 1.7 3.2 4.7 vin = ?20 db, f = 5 khz c-type nr encode boost c-enc-1k(1) 3.9 5.9 7.9 db vin = ?20 db, f = 1 khz c-enc-1k(2) 18.1 19.6 21.6 vin = ?60 db, f = 1 khz c-enc-700 9.8 11.8 13.8 vin = ?30 db, f = 700 hz signal handling vomax 12.0 13.0 ? db f = 1 khz, thd = 1%, v cc = 12 v *1 signal to noise ratio s/n 60.0 63.0 ? db rg = 5.1 k ? , ccir/arm total harmonic distortion thd ? 0.08 0.3 % vin = 0 db, f = 1 khz crosstalk c t (r ? l) ? ?85.0 ?79.0 db vin = 0 db, f = 1 khz c t (rpi ? pbi) ? ?80.0 ?74.0 c t (vri ? rpi) ? ?77.0 ?71.0 control hi level v ch 3.5 ? 5.3 v mpx on/off, nr voltage lo level v cl ?0.2 ? 1.0 on/off c-nr/b-nr serial data hi level v sh 3.5 ? 5.3 v clk, data, stb voltage lo level v sl ?0.2 ? 1.0 pb-out level ha12155 vout 500 580 670 mvrms vin = 0 db, f = 1 khz ha12157 665 775 900 pb-offset vofs ?100 0.0 +100 mv no signal channel balance ? g v ?1.0 0.0 1.0 db vin = 0 db, f = 1 khz volume gain g vvr (max) 17.5 19.3 21.5 db vin = 100 mvrms, f =1 khz g vvr (min) ? ? ?55.0 vin = 3 vrms, f = 1 khz ha12155nt/HA12157NT rev.4, jun. 1997, page 5 of 57 electrical characteristics (ta = 25c v cc = 14 v dolby level 300 mvrms) (cont) item symbol min typ max unit test conditions notes volume mute g vvr (mut) ? ? ?80.0 db vin = 3 vrms, f = 1 khz max-input level to volume vin max (vr) 11.0 12.6 ? dbs f = 1 khz, thd = 1%, v cc = 12 v volume s/n s/n (vr) 78.0 84.0 ? db vin = 100 mvrms, f = 1 khz, a-wtg volume thd thd (vr) ? 0.04 0.3 % vin = 100 mvrms, f = 1 khz equalizer gain g v eq (500) 13.0 15.0 17.0 db vin = 77.5 mvrms, f = 500 hz g v eq (1k) 13.0 15.0 17.0 vin = 77.5 mvrms, f = 1 khz g v eq (5k) 14.5 16.5 18.5 vin = 77.5 mvrms, f = 5 khz g v eq (10k) 18.5 20.5 22.5 vin = 77.5 mvrms, f = 10 khz g v eq (20k) 29.5 32.0 34.5 vin = 77.5 mvrms, f = 20 khz equalizer maximum input vin max (eq) ?8.0 ?7.0 ? dbs f = 1 khz, thd = 1%, v cc = 12 v *1 equalizer s/n s/n (eq) 57.0 62.0 ? db rg = 5.1 k ? , a-wtg equalizer thd thd (eq) ? 0.2 0.5 % vin = 77.5 mvrms, f = 1 khz equalizer offset vofs (eq) ?400 0.0 +400 mv no signal level meter output lm (0 db) 2.60 2.85 3.10 v vin = 0 db, f = 1 khz *2 lm (12 db) 3.60 3.90 4.20 v vin = 12 db, f = 1 khz level meter output lm (?20 db)1 0.80 1.10 1.40 v vin = ?20 db, f = 1 khz *2 lm (?20 db)2 2.55 3.0 3.15 v vin = ?20 db, f = 1 khz, ?20 db range level meter offset lmofs 1 ? 150 300 mv no signal lmofs 2 ? 200 350 no signal, ?20 db range notes: 1. ha12155 v cc = 9.5 v, ha12157 v cc = 12 v 2. 0 db = pb-out level ha12155nt/HA12157NT rev.4, jun. 1997, page 6 of 57 test circuit mode controller ac vm 2 dc vm 2 ac vm 3 eq pb rp vr sw4 ? ? audio sg ac vm 1 dc source 1 dc source 2 dc source 3 ac vm 4 distortion analyzer noise meter r4 10 k r5 10k r6 10 k r67 5.1 k r66 5.1 k c3 0.47 1 0.47 c33 c2 r29 18 k c1 0.47 degital gnd sw8 tp3 tp4 off sw25 on r27 2.4 k r26 5.6 k r25 10 k c30 2.2 c28 c29 2200p 2200p r24 22 k r23 560 c27 c26 c25 2200p 0.1 0.1 r21 20 k c23 0.1 c24 2.2 c22 1 r20 100 k r71 51 k r22 7.5 k c21 0.47 4.7 c20 r19 10 k pb rec eq sw12 sw14 l lm eq rec pb on off sw16 r1 22 k r2 22 k r3 22 k sw18 sw19 sw20 off on c b on sw21 sw23 s2 s3 s2 s3 l on sw3 vr rp pb eq off sw1 r30 r31 r32 r33 r34 r35 r36 r37 r38 r39 r40 r41 r42 r43 r44 r45 r46 r47 r48 r49 r50 r51 r52 r53 r54 r55 r56 r57 r58 r59 r60 c4 c5 c6 c7 c8 0.47 1 r68 5.1 k r69 5.1 k r7 10 k r9 2.4 k r10 5.6 k off sw24 on tp2 tp1 sw7 r11 22 k r13 560 c9 c10 2200 p 2200 p c11 2.2 + r12 10 k c12 c13 c14 2200p 0.1 0.1 c15 + 2.2 r14 20 k r75 16 k + c16 0.1 c17 1 r16 100 k c18 0.47 r17 24 k c19 4.7 r18 10 k 100k 51 k 51 k 33 k 33 k 33 k eq rec pb sw11 r l sw17 lm eq rec pb sw13 nr on/off c/b mpx on/off v cc vri (r) cnt (r) rpi (r) ref inj ia out (r) nrin (r) v (r) pbout (r) ss1 (r) ss2 (r) ccr (r) hls det(r) rec out(r) lm in(r) lm det(r) lm out(r) eq in(r) iref pbi (r) eq out(r) fm fq f/q gh gl gp ia out (l) nrin (l) v (l) pbout (l) ss1 (l) ss2 (l) ccr (l) hls det(l) rec out(l) lm in(l) lm det(l) lm out(l) pbi (l) eq in(l) eq out(l) gnd (2) nn nc nm hn hc hm 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 1 2 345 6 7 89 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 30 31 32 data clk stb gnd (1) vri (l) cnt (l) rpi (l) bias dgnd 3 ++ + ++ + ha12155/7 nt (rec 1 chip) dp-64s r15 7.5 k 14 v 5 v r + + + + + 0.47 c32 100 notes 1: registor tolerance are ? % 2: capacitor tolerance are ? % 3: unit r: c:f + + r28 10 k + ref ref r72 16 k + l sw10 sw9 r70 51k lls det(l) lls det(r) s2 s3 off oscilloscope noise meter with ccir/arm filter and a ? wtg filter 0.47 1 c60 10p c61 10p c62 10p r8 1.2 k 29 sw22 sw15 r + r61 r62 r63 r64 r65 + ha12155nt/HA12157NT rev.4, jun. 1997, page 7 of 57 example of split supply circuit 0.47 cn1 stb clk data dgnd c/b mpx on/off nr on/off v cc 2 (+5 v) 1 2 3 4 5 6 7 8 pbi (l) rpi (l) vri (l) r4 10 k r5 10 k r6 10 k c3 ++ 1 + 0.47 c33 c2 r67 5.1 k r66 5.1 k r28 10 k r29 18 k c1 0.47 degital gnd r27 2.4 k r26 5.6 k r24 22 k r23 560 c29 c28 c30 2.2 + + r25 10 k 2200 p 2200 p c27 2200 p c26 c25 0.1 0.1 2.2 c24 r21 20 k c23 0.1 ++ c22 1 r20 100 k r71 51 k + c21 0.47 + c20 0.47 r22 7.5 k r19 10 k eqout (l) lmout (l) pbout (l) recout (l) eqin (l) r72 16 k tp3 tp4 r1 22 k r2 22 k r3 22 k 0.47 c4 + c5 c6 c7 c8 ++++ 1 0.47 1 0.47 r68 5.1 k r69 5.1 k r7 10 k r8 r9 2.4 k r10 5.6 k r11 22 k r13 560 c9 c10 c11 2.2 r12 10 k + 2200 p 2200 p 2200 p c12 c13 c14 c15 c16 c17 c18 c19 0.1 0.1 2.2 + r14 20 k 0.1 1 r16 100 k r75 16 k eqin (r) recout (r) pbout (r) r70 51 k r15 7.5 k r18 10 k + 4.7 r30 r36 r42 r48 r54 r60 r31 r37 r43 r49 r55 r61 r32 r38 r44 r50 r56 r62 r33 r39 r45 r51 r57 r63 r34 r40 r46 r52 r58 r64 r35 r41 r47 r53 r59 r65 100 k 51 k 51 k 33 k 33 k 33 k eqout (r) lmout (r) tp2 tp1 vri (r) rpi (r) rbi (r) cn2 c34 100 + + c32 100 gnd v ee v cc 1 1 2 3 1234567891011121314151617181920212223242526272829303132 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 data clk stb gnd (1) vri (l) cnt (l) rpi (l) bias pbi (l) dgnd iaout (l) nrin (l) vref (l) pbout (l) ss1 (l) ss2 (l) ccr (l) hls det (l) lls det (l) rec out (l) lm in (l) lm det (l) lm out (l) eq in (l) gnd (2) eq out (l) nn nc nm hn hc hm nr on/off c/b mpx on/off v cc vri (r) cnt (r) pri (r) ref pbi (r) inj iaout (r) nrin (r) vref (r) pbout (r) ss1 (r) ss2 (r) ccr (r) hls det (r) lls det (r) rec out (r) lm in (r) lm det (r) lm out (r) eq in (r) iref eq out (r) fm fq fq gh gl gp ha12155/7 (rec 1 chip) dp-64s r17 + + 0.47 *1 note 1: the pin 10 can connect to v 1 through r8. the value of external resistor r8 is obtained by using following equations. 3.6 v ? v ? 0.7 inj ee r8 = (k ) ? cc c62 10p c61 10p c60 10p ha12155nt/HA12157NT rev.4, jun. 1997, page 8 of 57 mode controller gnd v (+5 v) cc c 100 r 2 4 r 1 22 k 22 k r 1 m 3 c 1 2.2 q q sw9 x'tal osc n11 ic8 n12 ic8 r 22 x'tal 1 mhz c 2 10 p c 3 120 p r 4 510 clr q a q b q c q d 62.5 khz 125 khz 250 khz 500 khz r 7 22 k r 8 22 k r 9 22 k r 10 22 k r 11 22 k r 12 22 k r 13 22 k r 14 22 k sw8 sw7 sw6 sw5 sw4 sw3 sw2 sw1 abcdef g h d ic4 7 clk clk inhibit shift load q h sw10 mclk d ic2 2 d ic2 1 trigger ic 1 clr trigger q q clr pr d q q clr pr d r 22 k 4 r 22 k 5 n13 ic8 n1 ic6 n5 ic8 q clr a q b q c q d d ic3 d ic9 q q clr pr d r 22 k 17 n3 ic6 n4 ic8 n6 ic6 d ic5 6 d ic5 5 d ic5 4 q q clr d q q clr d q q clr d n7 ic6 n9 ic7 n10 ic7 data clk v (+5 v) gnd stb mpx on/off c/b nr on/off cc n8 ic7 jp1 jp2 jp3 1 6 5 sw1 sw2 sw3 + 3 n2 ic8 9 d ic3 8 1m 1 4 8 2 3 notes 1: hc type ic which operate eqaully is also applicable instead of ic1-ic9. 2: as for ic1-ic9, input pins which are not used should be pulled up with resistor of 22 k . 3: as for ic1-ic9, required to put 0.1 f-capacitor between near gnd pin and voltage source pin for bypass. ? parts no. ic1 ic2 ic3 ic4 ic5 ic6 ic7 ic8 ic9 type hd74hc221 hd74hc74 hd74hc393 hd74hc165 hd74hc175 hd74hc00 hd74hc00 hd74hc04 hd74hc74 4: unit r : , c : f ? + ha12155nt/HA12157NT rev.4, jun. 1997, page 9 of 57 pin description (v cc = 14 v, ta = 25c, no signal, the value in the table show typical value) pin no. terminal dc dp-64s name zin voltage equivalent circuit description 7 rpi 100 k ? v cc /2 recording input 58 9 pbi play back input 56 21 lm in ha12155 ---75 k ? level meter input 44 ha12157 ---100 k ? 24 eq in 100 k ? equalyzer input 41 5 vri 100 k ? v cc /2 volume input 60 +0.7 v 4v cc ?v cc ? power supply 8ref?v cc /2 ? ripple filter 12 nr in ? v cc /2 nr processor input 53 15 ss 1 ? v cc /2 spectral skewing amp input 50 ha12155nt/HA12157NT rev.4, jun. 1997, page 10 of 57 pin description (v cc = 14 v, ta = 25c, no signal, the value in the table show typical value) (cont) pin no. terminal dc dp-64s name zin voltage equivalent circuit description 17 ccr ? v cc /2 current controled 48 resistor output 11 ia out ? v cc /2 input amp output 54 v gnd cc 13 vref reference voltage 52 buffer output 14 pb out play back (decode) 51 output 16 ss 2 spectral skewing 49 amp. output 20 rec out recording (encode) 45 output 26 eq out equalyzer output 39 ha12155nt/HA12157NT rev.4, jun. 1997, page 11 of 57 pin description (v cc = 14 v, ta = 25c, no signal, the value in the table show typical value) (cont) pin no. terminal dc dp-64s name zin voltage equivalent circuit description 18 hls det ? 2.3 v time constant pin for 47 rectifier 19 lls det 46 57 bias ? 0.28 v gnd dolby nr reference current input 25 iref ? 1.2 v eq reference current input 27 fm eq parameter current 28 fq input 29 f/q 30 gh 31 gl 32 gp ha12155nt/HA12157NT rev.4, jun. 1997, page 12 of 57 pin description (v cc = 14 v, ta = 25c, no signal, the value in the table show typical value) (cont) pin no. terminal dc dp-64s name zin voltage equivalent circuit description 33 hm ? ? gnd eq parameter selector 34 hc 35 hn 36 nm 37 nc 38 nn 6 cnt 5.2 k ? v cc /2- dac output volume 59 1.5 v to v cc /2 v / 2 dac out cc control input 22 lmd ? 0.2 v time constant pin for 43 lm out gnd lmd level meter 23 lm out ? 0.2 v level meter output 42 ha12155nt/HA12157NT rev.4, jun. 1997, page 13 of 57 pin description (v cc = 14 v, ta = 25c, no signal, the value in the table show typical value) (cont) pin no. terminal dc dp-64s name zin voltage equivalent circuit description 1nr on/off 100 k ? ? d - gnd gnd mode control input 2c/b 3mpx on/off 62 stb 63 clk 64 data 10 inj ? 0.7 v ? injection current input for i 2 l 55 d-gnd ? 0.0 v ? digital (logic) ground 40 gnd ? 0.0 v ? ground 61 application note power supply range ha12155nt/HA12157NT are designed to operate on either single supply or split supply. the operating range of the supply voltage is shown in table 1. table 1 supply voltage type no. single supply split supply ha12155nt 9.5 v to 16 v 6 v to 8 v HA12157NT 12 v to 16 v 6 v to 8 v the lower limit of supply voltage depends on the line output reference level. ha12155nt/HA12157NT rev.4, jun. 1997, page 14 of 57 the minimum value of the headroom margin is specified as 12 db by dolby laboratories. ha12155 series are provided with two line output level, which will permit an optimum headroom margin for power supply conditions. reference voltage for the single supply operation these devices provide the reference voltage of half the supply voltage that is the signal grounds. as the peculiarity of these devices, the capacitor for the ripple filter is very small about 1/100 compared with their usual value. the reference voltage are provided for the left channel and the right channel separately. the block diagram is shown as figure 1. l channel reference r channel reference v 8 52 13 + ? ? + + 1 f cc figure 1 the block diagram of reference voltage supply operating mode control ha12155nt/HA12157NT provides fully electronic switching circuits. nr-on/off, c/b, and mpx on/off switches are controlled by parallel data (dc voltage) and other switches are controlled by serial data. ha12155nt/HA12157NT rev.4, jun. 1997, page 15 of 57 table 2 threshold voltage (v th ) pin no. lo hi unit 1, 2, 3 ? 0.2 to 1.0 3.5 to 5.3 v 62, 63, 64 ? 0.2 to 1.0 3.5 to 5.3 v notes: 1. voltages shown above are determined by internal circuits of lsi when take pin 55 (dgnd pin) as reference pin. on split supply use, same v th can be offered by connecting dgnd pin to gnd pin. this means that it can be controlled directly by micro processor. 2. each pins are on pulled down with 100 k ? internal resistor. therefore, it will be low-level when each pins ar open. 3. note on serial data inputting (a) the clock frequency on clk must be less than 500 khz. (b) over shoot level and under shoot level of input signal must be the value shown below. (c) the serial input pins (pins 62, 63, and 64) are extremely sensitive to undershoot, overshoot, ringing, and noise. this can result in malfunctions due to problems with the wiring pattern. we recommend attaching capacitors in parallel with the serial input pins to ameliorate this problem. figure 2-b shows an example of this circuit appropriate when the clock frequency is 500 khz. the value of the capacitor should be set in accordance with the clock frequency actually used. 4. nr mode switching in actual use, pop noises may accompany nr on/off switching in c mode. to avoid these noises, use the following sequences to turn nr on and off. from c mode nr off to c mode nr on: (c mode, nr off) (b mode, nr off) (b mode, nr on) (c mode, nr on). from c mode nr on to c mode nr off: (c mode, nr on) (b mode, nr on) (b mode, nr off) (c mode, nr off). table 3 switching truth table pin no. lo hi 1 nr-off nr-on 2 b-nr c-nr 3 mpx-on mpx-off notes: 1. low level will be offered when each pins are open. 2. please refer to next term as for the serial data for formatting. when connecting microcomputer or logic-ic with ha12155nt/HA12157NT directly, there is apprehension of rash-current under some transition timming of raising voltage or falling voltage at v cc on/off. for this countermeasure, connect 10 k ? to 20 k ? resistor with each pins. it is shown in test circuit. ha12155nt/HA12157NT rev.4, jun. 1997, page 16 of 57 within ? 0.2 v under 5.3 v 0 figure 2 input level serial data formatting 8 bit shift register is employed. clk and data are stored during stb being high and data is ratched when stb goes high to low. the clock frequency on clk must be less than 500 khz. 01234567 latch of data 5 v 0 v 5 v 0 v 5 v 0 v clk data stb figure 3 serial data timming chart ha12155nt/HA12157NT rev.4, jun. 1997, page 17 of 57 table 4 serial data formatting bit no. control register volume register 0 tape h dac0 select 1 l ts1 ts2 h hl l tape iv tape ii tape i tape i bit no. 543210 llllll lllllh ll l lhl llllhh hhhhl h hhhhh l hhhhhh increase gain decrese mute 1 tape h dac1 *mute is implemented when all select 2 l bits are high. 2 tape h high (double) speed selection dac2 speed l normal speed selection 3 meter h meter sensitivity 20 db up dac3 sensitivity l meter sensitivity normal 4 input h dac4 select 1 l is1 is2 h hl l pb i rp i vr i vr i 5 input h dac 5 select 2 l 6 rec/pb h pb mode selection r/l select h rch register selection l rec mode selection l lch register selection 7register select h control register selection register select l volume register selection note: tape i: normal tape, tape ii: chrome tape, tape iv: metal tape ha12155nt/HA12157NT rev.4, jun. 1997, page 18 of 57 input block diagram and level diagram ? 3 db ia out nr ln mpx filter rpi pbi pb - out nr circuit mpx on mpx off ? 3 db input amp elect- rical vr ma vri 43 mvrms ( ? 25.2 dbs) 43 mvrms ( ? 25.2 dbs) 426 mvrms ( ? 5.2 dbs) 300 mvrms ( ? 8.2 dbs) ha12157 775 mvrms (0 dbs) ha12155 580 mvrms ( ? 2.5 dbs) 47 mvrms ( ? 24.3 dbs) vri rpi pbi ia out mpx filter nr ln pb - out ha12155 580 mvrms ( ? 2.5 dbs) ha12157 775 mvrms (0 dbs) nr circuit ma input amp 300 mvrms ( ? 8.2 dbs) 30 mvrms ( ? 28.2 dbs) 30 mvrms ( ? 28.2 dbs) elect- rical vr 33 mvrms ( ? 27.4 dbs) nr circuit the each level shown above is typical value when offering dolby level to test point pin (nr in) with the gain of electrical volume is under the condition of max. the each level shown above is typical value when offering dolby level to test point pin (ia out) with the gain of electrical volume is under the condition of max. b) rec mode a) pb mode figure 4 input block diagram ha12155nt/HA12157NT rev.4, jun. 1997, page 19 of 57 mpx on/off switch mpx-off mode means that signal from input amp doesn?t go through the mpx filter, but signal goes through the ss circuit after being attenuated 3 db by internal resistor. refer to figure 5. for not cause any level difference between mpx-on mode and mpx-off mode, it is requested to use mpx-filter which has definitely 3 db attenuated. mpx-off mode offer totally flat frequency response and no bias-trap effect. and when applying other usage except figure 5, take consideration to give bias voltage to nr-in terminal by resistor or so on because internal of nr-in terminal hsa no bias resistor. 5.6 k mpx 2.4 k vref input amp mpx on mpx off nr processer vref 3 db att. ia out nr in vref + ? + ? ? ? figure 5 mpx on/off switch block diagram application as for the dubbing cassette deck ha12155nt/HA12157NT series has unprocessor signal from recording out terminals during plyaback mode. so, it is simply applied for dubbing cassette decks. and ha12155nt/HA12157NT has three input terminal. so, it is applicable to switch the signal from pb- eq as shown below. ha12155nt/HA12157NT rev.4, jun. 1997, page 20 of 57 a deck pb eq pb eq b deck compensation of low frequency region rec out pbi rpi eq in eq out vri rec in pb out rec pb ha12155 / 7 figure 6 application for dubbing deck injector current ha12155nt/HA12157NT has logic circuit which is fabricated by i 2 l into ic. to operate this circuit, it is required enough injector current. injector current goes into from the inj pin (pin 10) and external resistor is required to connect to this pin for adequate current. the value of external resistor is obtained by using following equations. and put them with 10% tolerance value which is calculated. v inj can allow to connect to v cc shown below. under the condition of high temperature, the mis-operation of logic is caused by large injector current. also, under the condition of low temperature, the stop of logic is caused by small injector current. therefore, pay attention to have good stability of v inj . r inj = v inj ?0.7 3.6 [k ? ] ---- single supply r inj = v inj + v ee ?0.7 3.6 [k ? ] ---- split supply r 3.6 ma v ha12155 / 7 10 40 61 a) single supply use b) split supply use 40 61 10 3.6 ma ha12155 / 7 inj inj v inj r inj v ee figure 7 injector current application ha12155nt/HA12157NT rev.4, jun. 1997, page 21 of 57 gain control of electronic volume ha12155nt/HA12157NT is designed in order to change the gain by 6 bit dac fabricated into ic. to reduce the click noise when changing volume gain instantaneously, required to connect the capacitor (cr time constant) to cnt pin (pin 6,59). these terminals are also be used as output pin of dac. therefore, by forcing voltage or current to these terminals, it is applicable to control volume gain directly. but, voltage forced to these terminals must be from v cc /2 ?2 v to v cc /2 (for split supply use, ?2 v to 0 v) in this case. in case of forcing the current these pins, voltage must be the value mentioned above even it is 20% distributed of internal resistor (5.2 k ? ) of cnt pin. and, these case, change of a gain depending on a temperature gets large. the tolerances of external components for dolby nr-block for adequate dolby nr tracking response, take external components shown below. for smooth capacitors of c13, c14, c25 and c26, please employ a few object of the leak, though you can be useful for an electrolytic capacitor. c25 0.1 10% c26 0.1 10% c27 2200 p 5% r23 560 2% c29 2200 p 5% c28 2200 p 5% r24 22 k 2% r29 18 k 2% 57 51 50 49 48 47 46 14 15 16 17 18 19 bias pb out (l) ss1 (l) ss2 (l) ccr (l) hls det(l) lls det(l) pb out (r) ss1 (r) ss2 (r) ccr (r) hls det(r) lls det(r) r11 22 k 2% c9 2200 p 5% c10 2200 p 5% r13 560 2% c12 2200 p 5% c13 0.1 10% c14 0.1 10% unit r : c : f ? ha12155/7 (rec 1 chip) figure 8 tolerances of external components level meter the coupling capacitor of lmin pin (21 pin and 44 pin). for these capacitors please employ a small object of the leak. ha12155nt/HA12157NT rev.4, jun. 1997, page 22 of 57 the application of equalizer frequency response eq in r1 r2 r3 op1 gm1 op2 gm2 f / q op5 r6 r7 r10 eq out r9 r8 gh gl fm r4 r5 gm4 op6 gm3 op3 gm5 op7 gm6 op4 c3 gp c1 c2 + _ + _ + _ + _ + _ + _ + _ + _ _ + _ + _ + _ + _ + figure 9 rec equalizer block diagram transfer function: vout vin = r 2 + r 3 r 2 gm5 r 8 ? r 10 r 9 1 + c3 gm4 gm6 gm5 s 1 + c3 gm 4 s + gm1 r 4 ? r 10 r 6 + r 7 c2 gm3 s 1 + r 4 r 5 r7 r 6 + r 7 c2 gm3 s + r 4 r 5 c1 gm 2 c2 gm3 s 2 ? ? ? ? ? ? ? ? ? ? ? ? = 4.16 r ref r gl 1 + 6.67 10 ? 10 r fm ? r gh r gl ? s 1 + 6.67 10 ? 10 r fm ? s + rgp 3.0 10 ? 10 ? r fq ? s 1 + 4.5 10 ? 11 ? r fq ? s + 2.5 10 ? 20 ? r fq ? r f/ q s 2 ? ? ? ? ? ? ? ? ? ? ? ? *r ref -----25 pin bias resistance ha12155nt/HA12157NT rev.4, jun. 1997, page 23 of 57 gain 3db bw f1 f2 f3 f g1 g2 g3 figure 10 rec equalizer frequency response gl = 4.16 r ref 6.67 r gp + r gh () g2 = 4.16 r gl r ref g3 = 4.16 r gh r ref f1 = 1 2 6.67 10 ? 10 r fm f2 = r gl 2 6.67 10 ? 10 r fm r gh f3 = 1 2 ? 0.3 2.25 10 ? 21 r fq r f/q bw = 1 4 2.78 10 ? 10 r f/q q = f3 bw = 3.51 r f/q r f/q ha12155nt/HA12157NT rev.4, jun. 1997, page 24 of 57 35 30 25 8 1012141618 quiescent current i (ma) supply voltage vcc (v) pb : pbi in (dac step 0) lm : normal rec : vri in (dac step 0) lm : normal quiescent current vs. supply voltage q rec ? c rec ? b rec ? off pb ? c pb ? b pb ? off ha12155nt/HA12157NT rev.4, jun. 1997, page 25 of 57 12 10 8 6 4 2 0 100 200 500 1 k 2 k 5 k 10 k 20 k 50 k 100 k frequency (hz) nr ? b rpi in recout out encode boost (db) 9 v 16 v 14 v : vin = ? 0 db : vin = ? 10 db : vin = ? 20 db : vin = ? 30 db : vin = ? 40 db encode boost vs. frequency (ha12155) ha12155nt/HA12157NT rev.4, jun. 1997, page 26 of 57 16 v 14 v 9 v 25 20 15 10 5 0 ? 5 ? 10 100 200 500 1 k 2 k 5 k 10 k 20 k 50 k 100 k frequency (hz) encode boost (db) nr-c rpi in recout out : vin = 0 db : vin = ? 20 db : vin = ? 30 db : vin = ? 40 db : vin = ? 60 db encode boost vs. frequency (ha12155) ha12155nt/HA12157NT rev.4, jun. 1997, page 27 of 57 : vin = 0 db : vin = ? 10 db : vin = ? 20 db : vin = ? 30 db : vin = ? 40 db 12 10 8 6 4 2 0 100 200 500 1 k 2 k 5 k 10 k 20 k 50 k 100 k frequency (hz) encode boost (db) 16 v 14 v 11 v encode boost vs. frequency (ha12157) nr-b rpi in recout out ha12155nt/HA12157NT rev.4, jun. 1997, page 28 of 57 encode boost vs. frequency (ha12157) 25 20 15 10 5 0 ? 5 ? 10 100 200 500 1 k 2 k 5 k 10 k 20 k 50 k 100 k frequency (hz) encode boost (db) 14 v 16 v 11 v : vin = ? 0 db : vin = ? 20 db : vin = ? 30 db : vin = ? 40 db : vin = ? 60 db nr-c rpi in recout out ha12155nt/HA12157NT rev.4, jun. 1997, page 29 of 57 pb out rec out 26 22 18 14 10 6 10 30 60 100 300 600 1 k 3 k 6 k 10 k 30 k 60 k 100 k frequency (hz) output gain gv (db) (nr ? off, rpi) vcc = 14 v rec mode output gain vs. frequency (ha12155) ha12155nt/HA12157NT rev.4, jun. 1997, page 30 of 57 pb out rec out 28 24 20 16 12 8 10 30 60 100 300 600 1 k 3 k 6 k 10 k 30 k 60 k 100 k frequency (hz) output gain gv (db) pb mode (nr ? off, rpi) vcc = 14 v output gain vs. frequency (ha12155) ha12155nt/HA12157NT rev.4, jun. 1997, page 31 of 57 pb out rec out 10 30 60 100 300 600 1 k 3 k 6 k 10 k 30 k 60 k 100 k frequency (hz) 28 24 20 16 12 8 output gain gv (db) (nr ? off, rpi) vcc = 14 v rec mode output gain vs. frequency (ha12157) ha12155nt/HA12157NT rev.4, jun. 1997, page 32 of 57 pb out rec out 10 30 60 100 300 600 1 k 3 k 6 k 10 k 30 k 60 k 100 k 30 26 22 18 14 10 frequency (hz) out put gain gv (db) output gain vs. frequency (ha12157) pb mode (nr ? off, pbi) vcc = 14 v ha12155nt/HA12157NT rev.4, jun. 1997, page 33 of 57 nr-c nr-b nr-off ? 15 ? 10 ? 5051015 0.01 0.03 0.1 0.3 1.0 3.0 10 output level vout (db) total harmonic distortin t.h.d. (%) cc rpi in recout out rec mode f = 100 hz v = 14 v 0 db = 300 mvrms total harmonic distortion vs. output level (ha12155) nr-c nr-b nr-off ? 15 ? 10 ? 5051015 0.01 0.03 0.1 0.3 1.0 3.0 10 output level vout (db) total harmonic distortion t.h.d. (%) cc rpi in recout out rec mode f = 1 khz v = 14 v 0 db = 300 mvrms total harmonic distortion vs. output level (ha12155) ha12155nt/HA12157NT rev.4, jun. 1997, page 34 of 57 nr-c nr-b nr-off ? 15 0.01 0.03 0.1 0.3 1.0 3.0 10 total harmonic distortion t.h.d. (%) total harmonic distortion vs. output level (ha12155) ? 10 ? 5051015 output level vout (db) rpi in recout out rec mode f = 10 khz v = 14 v 0 db = 300 mvrms cc nr-c nr-b nr-off ? 15 ? 10 ? 5051015 0.01 0.03 0.1 0.3 1.0 3.0 10 output level vout (db) total harmonic distortion t.h.d. (%) cc pbi in pbout out pb mode f = 100 hz v = 14 v 0 db = 580 mvrms total harmonic distortion vs. output level (ha12155) ha12155nt/HA12157NT rev.4, jun. 1997, page 35 of 57 nr-c nr-b nr-off ? 15 0.01 0.03 0.1 0.3 1.0 3.0 10 total harmonic distortion t.h.d. (%) total harmonic distortion vs. output level (ha12155) pbi in pbout out pb mode f = 1 khz v = 14 v 0 db = 580 mvrms cc ? 10 ? 5051015 output level vout (db) nr-c nr-b nr-off ? 15 0.01 0.03 0.1 0.3 1.0 3.0 10 total harmonic distortion t.h.d. (%) total harmonic distortion vs. output level (ha12155) pbi in pbout out pb mode f = 10 khz v = 14 v 0 db = 580 mvrms cc ? 10 ? 5051015 output level vout (db) ha12155nt/HA12157NT rev.4, jun. 1997, page 36 of 57 nr-c nr-b nr-off ? 15 0.01 0.03 0.1 0.3 1.0 3.0 10 total harmonic distortion t.h.d. (%) total harmonic distortion vs. output level (ha12157) rpi in recout out rec mode f = 100 hz v = 14 v cc ? 10 ? 5051015 output level vout (db) nr-c nr-b nr-off ? 15 0.01 0.03 0.1 0.3 1.0 3.0 10 total harmonic distortion t.h.d. (%) total harmonic distortion vs. output level (ha12157) rpi in recout out rec mode f = 1 khz v = 14 v cc ? 10 ? 5051015 output level vout (db) ha12155nt/HA12157NT rev.4, jun. 1997, page 37 of 57 nr-c nr-b nr-off ? 15 0.01 0.03 0.1 0.3 1.0 3.0 10 total harmonic distortion t.h.d. (%) total harmonic distortion vs. output level (ha12157) rpi in recout out rec mode f = 10 khz v = 14 v cc ? 10 ? 5051015 output level vout (db) nr-c nr-b nr-off ? 15 0.01 0.03 0.1 0.3 1.0 3.0 10 total harmonic distortion t.h.d. (%) total harmonic distortion vs. output level (ha12157) rbi in rbout out pb mode f = 100 hz v = 14 v cc ? 10 ? 5051015 output level vout (db) ha12155nt/HA12157NT rev.4, jun. 1997, page 38 of 57 nr-c nr-b nr-off ? 15 0.01 0.03 0.1 0.3 1.0 3.0 10 total harmonic distortion t.h.d. (%) total harmonic distortion vs. output level (ha12157) pbi in pbout out rec mode f = 10 khz v = 14 v cc ? 10 ? 5051015 output level vout (db) nr-c nr-b nr-off ? 15 0.01 0.03 0.1 0.3 1.0 3.0 10 total harmonic distortion t.h.d. (%) total harmonic distortion vs. output level (ha12157) pbi in pbout out pb mode f = 10 khz v = 14 v cc ? 10 ? 5051015 output level vout (db) ha12155nt/HA12157NT rev.4, jun. 1997, page 39 of 57 max. output level vs. supply voltage (ha12155) supply voltage v (v) cc max. output level vo max (db) t.h.d. = 1% 0 db = 300 mvrms f = 1 khz rec mode rpi in recout out off b c 8 9 10 11 12 13 14 15 16 0 5 10 15 20 max. output level vs. supply voltage (ha12155) supply voltage v (v) cc max. output level vo max (db) t.h.d. = 1% 0 db = 580 mvrms f = 1 khz pb mode pbi in pbout out 8 9 10 11 12 13 14 15 16 0 5 10 15 20 ha12155nt/HA12157NT rev.4, jun. 1997, page 40 of 57 max. output level vs. supply voltage (ha12157) max. output level vo max (db) supply voltage v (v) cc f = 1 khz rec mode rpi in recout out 9 101112131516 0 10 15 20 5 t.h.d. = 1% 0 db = 300 mvrms b c off max. output level vs. supply voltage (ha12157) max. output level vo max (db) supply voltage v (v) cc f = 1 khz pb mode pbi in pbout out 10 11 12 13 14 15 16 0 10 15 20 5 t.h.d. = 1% 0 db = 775 mvrms b c off ha12155nt/HA12157NT rev.4, jun. 1997, page 41 of 57 pb-c pb-b rec-off rpi rec-off vri pb-off rec-b rpi rec-b vri rec-c rpi rec-c vri signal-to-noise ratio vs. supply voltage (ha12155) 90 80 70 60 50 910111213141516 supply voltage vcc (v) signal-to-noise ratio s/n (db) e vol : dac step no.18 vin = 100 mvrms ccir/arm ha12155nt/HA12157NT rev.4, jun. 1997, page 42 of 57 signal-to-noise ratio vs. supply voltage (ha12157) 90 80 70 60 50 10 11 12 13 14 15 16 supply voltage v (v) signal-to-noise ratio s/n (db) vri : dac step no.18 vin = 100 mvrms ccir/arm pb-c pb-b rec-off rpi rec-off vri rb-off pb-b rpi rec-b vri rec-c rpi rec-c vri cc crosstalk vs. frequency (r l) frequency (hz) 10 100 1 k 10 k 100 k ? 120 ? 100 ? 80 ? 60 ? 40 ? 20 crosstalk (r l) (db) rec mode rpi in recout out vin = +6 db v = 14 v cc c b off ha12155nt/HA12157NT rev.4, jun. 1997, page 43 of 57 crosstalk vs. frequency (r l) frequency (hz) 10 100 1 k 10 k 100 k ? 120 ? 100 ? 80 ? 60 ? 40 ? 20 cc c b crosstalk (r l) (db) off pb mode rpi in pbout out vin = +6 db v = 14 v crosstalk (db) crosstalk vs. frequency frequency (hz) 10 30 60 100 300 600 1 k 3 k 6 k 10 k 30 k 60 k 100 k ? 100 ? 80 ? 60 ? 40 ? 20 0 v = 14 v cc rpi pbi rpi vri ha12155nt/HA12157NT rev.4, jun. 1997, page 44 of 57 crosstalk (db) crosstalk vs. frequency frequency (hz) 10 30 60 100 300 600 1 k 3 k 6 k 10 k 30 k 60 k 100 k ? 100 ? 80 ? 60 ? 40 ? 20 0 v = 14 v cc pbi rpi pbi vri crosstalk (db) crosstalk vs. frequency frequency (hz) 10 30 60 100 300 600 1 k 3 k 6 k 10 k 30 k 60 k 100 k ? 100 ? 80 ? 60 ? 40 ? 20 0 v = 14 v cc vri rpi vri pbi ha12155nt/HA12157NT rev.4, jun. 1997, page 45 of 57 ripple rejection ratio vs. frequency (rec mode) frequency (hz) ripple rejection ratio r.r.r. (db) 0 ? 10 ? 20 ? 30 ? 40 ? 50 10 50 100 500 1 k 5 k 10 k 50 k 100 k v = 14 v recout out cc c b off ripple rejection ratio vs. frequency (pb mode) frequency (hz) ripple rejection ratio r.r.r. (db) ? 10 ? 20 ? 30 ? 40 ? 50 ? 60 10 50 100 500 1 k 5 k 10 k 50 k 100 k v = 14 v pbout out cc b c off ha12155nt/HA12157NT rev.4, jun. 1997, page 46 of 57 gain, s/n and vomax vs. dac step 20 10 0 ? 10 ? 20 0 203040 10 60 70 80 90 100 dac step no. v = 14 v f = 1 khz vri in iaout out cc iaout gain gv (db) s/n (db) vo max (db) 0 db = ? 5.2 dbs t.h.d. = 1 % input level vin (the value to be converted) (dbs) 20 16 12 8 4 0 2 ? 25 ? 15 ? 5 5 15 ? 20 ? 10 0 10 s/n vo max gv.vin (jis a filter) ha12155nt/HA12157NT rev.4, jun. 1997, page 47 of 57 total harmonic distortion vs. dac step dac step 0 1020304050 0.01 0.03 0.1 0.3 1.0 3.0 10 total harmonic distortion t.h.d. (%) 0 db = ? 5.2 dbs vcc = 14 v f = 100 hz iaout output level = const +10 db 0 db ? 10 db total harmonic distortion vs. dac step dac step 0 1020304050 0.01 0.03 0.1 0.3 1.0 3.0 10 total harmonic distortion t.h.d. (%) 0 db = ? 5.2 dbs vcc = 14 v f = 1 khz iaout output level = const + 10 db 0 db ? 10 db ha12155nt/HA12157NT rev.4, jun. 1997, page 48 of 57 total harmonic distortion vs. dac step dac step 0 1020304050 0.01 0.03 0.1 0.3 1.0 3.0 10 total harmonic distortion t.h.d. (%) 0 db = ? 5.2 dbs vcc = 14 v f = 10 khz iaout output level = const + 10 db 0 db ? 10 db e. vol max. input level vs. supply voltage 16 14 12 10 8 6 4 2 0 8 1012141618 supply voltage v (v) cc e. vol max. input level vin max (iaout t.h.d. = 1 %) (db) f = 1 khz iaout out dac step no.= 42 ha12155nt/HA12157NT rev.4, jun. 1997, page 49 of 57 frequency (hz) electronic volume gain vs. frequency electronic volume gain (db) 10 100 1 k 10 k 100 k ? 70 ? 60 ? 50 ? 10 ? 30 ? 20 0 10 20 30 ? 40 dac step0 dac step20 dac step29 dac step36 dac step42 dac step47 dac step51 dac step56 dac step62 vri in iaout out v = 14 v v in = ? 12 dbs cc level meter output vs. input level (ha12155) input level vin (db) level meter output (v) 4.0 3.0 2.0 1.0 0 ? 80 ? 60 ? 40 ? 20 0 20 40 0 db range ? 20 db range 0 db = 580 mvrms v = 14 v f = 1 khz cc ha12155nt/HA12157NT rev.4, jun. 1997, page 50 of 57 level meter output vs. input level (ha12157) input level vin (db) level meter output (v) 4.0 3.0 2.0 1.0 0 ? 80 ? 60 ? 40 ? 20 0 20 40 0 db range ? 20 db range 0 db = 775 mvrms v = 14 v f = 1 khz cc level meter output vs. frequency frequency (hz) level meter output (v) 3.2 3.0 2.8 2.6 2.4 2.2 2.0 20 30 100 300 1 k 3 k 10 k 30 k 100 k v = 14 v cc 0 db range vin = 0 db ? 20 db range vin = ? 20 db ha12155nt/HA12157NT rev.4, jun. 1997, page 51 of 57 level meter output vs. supply voltage 4.0 3.0 2.0 1.0 0 8 1012141618 0 db range vin = 0 db ? 20 db range vin = ? 20 db supply voltage v (v) cc level meter output (v) f = 1 khz 0 db range vin = ? 20 db 0 db range vin = 12 db equalizer gain vs. frequency frequency (hz) equalizer gain (db) 40 25 10 1 k 300 10 3 k 10 k 30 k 100 k (5) (3) (6) (4) (1) (2) r gp r gl r gh r f/q r fq r fm (1) (2) (3) (4) (5) (6) nn hn nc hc nm hm 33 k 33 k 33 k 51 k 51 k 100 k100 k 100 k100 k100 k100 k 33 k 33 k 33 k 47 k 47 k 33 k 51 k 51 k 51 k 51 k 33 k 51 k 20 k 51 k 20 k 27 k 51 k 27 k 51 k 27 k 51 k 51 k 51 k 51 k v = 14 v vin = ? 20 dbs cc 20 k ha12155nt/HA12157NT rev.4, jun. 1997, page 52 of 57 output level vout (db) total hrmonic distortion t.h.d. (%) equalizer total harmonic distortion vs. output level ? 10 ? 50 5101520 0.1 0.3 1.0 3.0 10 30 v = 14 v 0 db = ? 5 dbs rload = 10 k r = 33 k r = 33 k r = 100 k r = 33 k r = 51 k r = 51 k cc gl gh fm gp f/q fq ? ? ? ? ? ? : 15 khz : 10 khz : 6.3 khz : 3.15 khz : 1 khz : 315 hz ? 35 30 25 20 15 10 5 5k 10 k 30 k 100 k 1 m 300 k equalizer amplifier gain (gl) vs. r r ( ) equalizer amplifier gain gl (db) at r = 33 k v out = e 5 dbs ? gp f/q ? ? f = 315 hz f = 1 khz v = 14v r = r = 33 k r = r = 51 k r = 100 k cc gh fq fm gl ? ? gl gl ha12155nt/HA12157NT rev.4, jun. 1997, page 53 of 57 equalizer amplifier gain (gh) vs. r gh 35 30 25 20 15 10 5 5k 10 k 30 k 100 k 1 m 300 k r ( ) equalizer amplifier gain gh (db) ? gh at r = 33 k vout = e 5 dbs gh cc gl gp fq fm f/q ? ? ? ? v = 14 v r = 33 k r = 16 k r = r = 24 k r = 390 k f = 6.3 khz ? equalizer amplifier gain (gp) vs. r gp 50 45 40 35 30 25 20 5k 10 k 30 k 100 k 1 m 300 k r ( ) equalizer amplifier gain gp (db) ? gp cc gh gp f/q fq fm ? ? ? v = 14 v r = r = 33 k r = r = 51 k r = 100 k f = 19 khz ha12155nt/HA12157NT rev.4, jun. 1997, page 54 of 57 equalizer cut off frequency (fm) vs. r fm 100 k 30 k 10 k 3 k 1 k 300 5 k 10 k 30 k 100 k 300 k 1 m r ( ) fm ? equalizer cut off frequency fm (hz) v = 14 v r = 120 k r = 7.5 k r = r = 24 k r = 16 k cc gl gh fq gp f/q ? ? ? ? equalizer peak frequency vs. r fq 300 k 100 k 30 k 10 k 3 k 2 k 5 k 10 k 30 k 100 k 300 k 1 m r ( ) fq ? equalizer peak frequency fo (hz) r = f/q ? ? ? ? ? ? 12 k 24 k 51 k 100 k 200 k 390 k ha12155nt/HA12157NT rev.4, jun. 1997, page 55 of 57 equalizer q vs. r fq 15 10 5 0 5 k 10 k 30 k 100 k 300 k 1 m r ( ) fq ? equalizer quality factor q r = 390 k 200 k 100 k 51 k 24 k 12 k ? ? ? ? ? ? f/q ha12155nt/HA12157NT rev.4, jun. 1997, page 56 of 57 package dimensions unit: mm 0.25 + 0.11 ? 0.05 0? ?15? 1.78 ?0.25 0.48 ?0.10 0.51 min 2.54 min 5.08 max 19.05 57.6 58.5 max 1.0 1 33 32 64 17.0 18.6 max 1.46 max hitachi code jedec code eiaj code weight dp-64s sc-553-64a 8.8 g ha12155nt/HA12157NT rev.4, jun. 1997, page 57 of 57 disclaimer 1. hitachi neither warrants nor grants licenses of any rights of hitachi?s or any third party?s patent, copyright, trademark, or other intellectual property rights for information contained in this document. hitachi bears no responsibility for problems that may arise with third party?s rights, including intellectual property rights, in connection with use of the information contained in this document. 2. products and product specifications may be subject to change without notice. confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. hitachi makes every attempt to ensure that its products are of high quality and reliability. however, contact hitachi?s sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support. 4. design your application so that the product is used within the ranges guaranteed by hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as fail- safes, so that the equipment incorporating hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the hitachi product. 5. this product is not designed to be radiation resistant. 6. no one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from hitachi. 7. contact hitachi?s sales office for any questions regarding this document or hitachi semiconductor products. sales offices hitachi, ltd. semiconductor & integrated circuits. nippon bldg., 2-6-2, ohte-machi, chiyoda-ku, tokyo 100-0004, japan tel: tokyo (03) 3270-2111 fax: (03) 3270-5109 copyright ? hitachi, ltd., 2000. all rights reserved. printed in japan. hitachi asia ltd. hitachi tower 16 collyer quay #20-00, singapore 049318 tel : <65>-538-6533/538-8577 fax : <65>-538-6933/538-3877 url : http://www.hitachi.com.sg url northamerica : http://semiconductor.hitachi.com/ europe : http://www.hitachi-eu.com/hel/ecg asia : http://sicapac.hitachi-asia.com japan : http://www.hitachi.co.jp/sicd/indx.htm hitachi asia ltd. (taipei branch office) 4/f, no. 167, tun hwa north road, hung-kuo building, taipei (105), taiwan tel : <886>-(2)-2718-3666 fax : <886>-(2)-2718-8180 telex : 23222 has-tp url : http://www.hitachi.com.tw hitachi asia (hong kong) ltd. group iii (electronic components) 7/f., north tower, world finance centre, harbour city, canton road tsim sha tsui, kowloon, hong kong tel : <852>-(2)-735-9218 fax : <852>-(2)-730-0281 url : http://www.hitachi.com.hk hitachi europe ltd. electronic components group. whitebrook park lower cookham road maidenhead berkshire sl6 8ya, united kingdom tel: <44> (1628) 585000 fax: <44> (1628) 585160 hitachi europe gmbh electronic components group dornacher stra e 3 d-85622 feldkirchen, munich germany tel: <49> (89) 9 9180-0 fax: <49> (89) 9 29 30 00 hitachi semiconductor (america) inc. 179 east tasman drive, san jose,ca 95134 tel: <1> (408) 433-1990 fax: <1>(408) 433-0223 for further information write to: colophon 2.0 |
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